331323311243 has 12 divisors (see below), whose sum is σ = 349337304960. Its totient is φ = 313862474016.

The previous prime is 331323311239. The next prime is 331323311251. The reversal of 331323311243 is 342113323133.

It is not a de Polignac number, because 331323311243 - 2² = 331323311239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331323311233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1952171 + ... + 2115092.

It is an arithmetic number, because the mean of its divisors is an integer number (29111442080).

Almost surely, 2^331323311243 is an apocalyptic number.

331323311243 is a deficient number, since it is larger than the sum of its proper divisors (18013993717).

331323311243 is an equidigital number, since it uses as much as digits as its factorization.

331323311243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067398 (or 4067345 counting only the distinct ones).

The product of its digits is 11664, while the sum is 29.

Adding to 331323311243 its reverse (342113323133), we get a palindrome (673436634376).

The spelling of 331323311243 in words is "three hundred thirty-one billion, three hundred twenty-three million, three hundred eleven thousand, two hundred forty-three".